Can multiple devices share an IP?
Basically, yes. Every IP address connected to the public Internet should be unique*. One of the premises of IP is that every device has a unique IP address and end-to-end connectivity.
How many devices share an IP address?
7 Answers. There is no limit to the number of computers, however there is a limit to the number of simultaneous connections because of the possibility of ephemeral port exhaustion. More computers usually means more connections so there is a practical limit to how many computers will typically share the same IP address.
How can two devices have the same IP address?
There are three ways for two devices to have the same IP address. Two devices on different networks both have the same local IP address within their networks. Devices on the same network share the same public IP address on the internet. Every computer and phone connected to the same router use the one IP address provided by the ISP.
How does your home router share your IP address?
Your router is then responsible for sharing your public IP address among the other computers and connected devices in your home. Your router assigns local IP addresses to your connected devices. This allows them to communicate amongst each other behind your router in your home. However, these local IP addresses aren’t reachable from the Internet.
Where does the public IP address go on a router?
Think of it this way. If you are using a single public IP address and sharing it between several private addresses, you must tell the cable modem/router that if I receive a connection on the public IP address on TCP port 80, then that should go to the private address of x.x.x.x on port 80 (or any port you want really).
How is a router connected to the Internet?
Your router is connected directly to the Internet, and it’s assigned your public IP address (which may change over time). Your router is then responsible for sharing your public IP address among the other computers and connected devices in your home.